Silverspoon

HI can anyone help- a mechanic friend has renewed the gearbox sump on a 2006 s-type 2.7d auto and has refilled with correct fluid, but the gearchange from cold seems worse than before. He checked running temperature and cycled through all the gears while while he refilled fluid, but it feels as though the fluid needs topping up still. Gearchange when warm is a lot better by the way.